Analyfts of the Atr. i6y 
Inches of Air, which Air did not arifc till 
the white fumes arofe j which was plain to 
be feen by the great defeent of the water at 
that time, in the receiver a zy ( Fig. 33.) 
Experiment L. 
Lefs than a cubick inch of TalloWy being 
all diftilled over into the receiver a z y 
(Fig. 33.) produced 18 cubick inches of 
Air. 
Experiment LI. 
241 Grains, or half a cubick inch of the 
tip of a fallow T>eefs horn, being diftilled 
in the iron retort, made of a musket bar- 
rel, which was heated at a fmith’s forge, pro- 
duced 1 17 cubick inches, that is, 234 times 
its bulk of Air, which did not begin to 
rife till the white fumes arofe 5 but then 
rulhed forth in great abundance, and in good 
plenty, alfo with the foetid oil which came 
laft. The remaining calx was two thirds 
black, the reft a(h coloured ; it weighed 12S 
grains, fo it was not half wafted, whence 
there muft remain much fulphur in it; the 
M 4 v/eight 
